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Patent US2474791A successfully refreshed from Google Patents.
US2474791A
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Nitroalkyl substituted heterocyclic compounds and process for preparing them
Assignee: Commercial Solvents Corp
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Filing: 1945-02-26
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Granted: 1949-06-28
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Expires: 1965-02-26
Abstract
No abstract record available.
Inventors
- 👤 Senkus Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:36
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/06; C07D295/067
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |